# Apache Airflow 3.0.5 — Release & Upgrade Intelligence
- **Product:** Apache Airflow (https://airflow.apache.org)
- **Version:** 3.0.5
- **Released:** Aug 20, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/airflow/updates/3.0.5/

## Executive Summary (TL;DR)
Apache Airflow 3.0.5. Source highlight: 📦 PyPI: https://pypi.org/project/apache-airflow/3.0.5/

## New Features
- Add IP validation to example_dag_decorator DAG (#54208)
- Add FAQ entry about testing connections and "Canary" Dag (#54151)
- Add note about ruff rules and preview flag (#53331)

## Improvements
- Improve documentation navigation by hiding Public Interface subsections from sidebar while preserving page links (#54465)

## Bug Fixes
- UI: Fix JSON field display in dark mode when using system OS theme detection (#54260)
- Restore proper DAG callback execution context (#53684)
- Restore ``get_previous_dagrun`` functionality for task context (#53655)
- Fix scheduler crashes with ``DetachedInstanceError`` when processing executor events (#54334)
- Fix ``DetachedInstanceError`` when accessing ``DagRun.created_dag_version`` (#54362)
- Fix Task SDK to respect custom default queue configuration from config settings (#52786)